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  • an
    an
    indefinite article
    the form of a before an initial vowel sound (an arch; an honor ) and sometimes, especially in British English, before an initial unstressed syllable beginning with a silent or weakly pronounced h .
  • An
    An
    noun
    the Sumerian god of heaven: the counterpart of the Akkadian Anu.
  • AN
    AN
    abbreviation
  • an-
    an-
    a prefix occurring before stems beginning with a vowel or h in loanwords from Greek, where it means “not,” “without,” “lacking” (anarchy; anecdote ); used in the formation of compound words.
  • -an
    -an
    a suffix occurring originally in adjectives borrowed from Latin, formed from nouns denoting places (Roman; urban ) or persons (Augustan ), and now productively forming English adjectives by extension of the Latin pattern. Attached to geographic names, it denotes provenance or membership (American; Chicagoan; Tibetan ), the latter sense now extended to membership in social classes, religious denominations, etc., in adjectives formed from various kinds of noun bases (Episcopalian; pedestrian; Puritan; Republican ) and membership in zoological taxa (acanthocephalan; crustacean ). Attached to personal names, it has the additional senses “contemporary with” (Elizabethan; Jacobean ) or “proponent of ” (Hegelian; Freudian ) the person specified by the noun base. The suffix -an, and its variant -ian also occurs in a set of personal nouns, mainly loanwords from French, denoting one who engages in, practices, or works with the referent of the base noun (comedian; grammarian; historian; theologian ); this usage is especially productive with nouns ending in -ic (electrician; logician; technician ). See -ian for relative distribution with that suffix.
  • an.
    an.
    abbreviation
    in the year.
  • A.N.
    A.N.
    abbreviation
    Anglo-Norman.
Synonyms

an

1 American  
[uhn, an] / ən, æn /

indefinite article

  1. the form of a before an initial vowel sound (an arch; an honor ) and sometimes, especially in British English, before an initial unstressed syllable beginning with a silent or weakly pronounced h .

    an historian.


an 2 American  
[uhn, an] / ən, æn /
Also an',

conjunction

  1. Informal. and.

  2. Archaic. if.


An 3 American  
[ahn] / ɑn /

noun

  1. the Sumerian god of heaven: the counterpart of the Akkadian Anu.


An 4 American  
Symbol, Chemistry.
  1. actinon.


AN 5 American  
Or A.-N.

abbreviation

  1. Anglo-Norman.


an- 6 American  
  1. a prefix occurring before stems beginning with a vowel or h in loanwords from Greek, where it means “not,” “without,” “lacking” (anarchy; anecdote ); used in the formation of compound words.

    anelectric.


an- 7 American  
  1. variant of ad- before n: announce.


an- 8 American  
  1. variant of ana- before a vowel.

    anion.


-an 9 American  
  1. a suffix occurring originally in adjectives borrowed from Latin, formed from nouns denoting places (Roman; urban ) or persons (Augustan ), and now productively forming English adjectives by extension of the Latin pattern. Attached to geographic names, it denotes provenance or membership (American; Chicagoan; Tibetan ), the latter sense now extended to membership in social classes, religious denominations, etc., in adjectives formed from various kinds of noun bases (Episcopalian; pedestrian; Puritan; Republican ) and membership in zoological taxa (acanthocephalan; crustacean ). Attached to personal names, it has the additional senses “contemporary with” (Elizabethan; Jacobean ) or “proponent of ” (Hegelian; Freudian ) the person specified by the noun base. The suffix -an, and its variant -ian also occurs in a set of personal nouns, mainly loanwords from French, denoting one who engages in, practices, or works with the referent of the base noun (comedian; grammarian; historian; theologian ); this usage is especially productive with nouns ending in -ic (electrician; logician; technician ). See -ian for relative distribution with that suffix.


an. 10 American  

abbreviation

  1. in the year.


A.N. 11 American  

abbreviation

  1. Anglo-Norman.

  2. Associate in Nursing.


-an 1 British  

suffix

  1. (forming adjectives and nouns) belonging to or relating to; a person belonging to or coming from

    European

  2. (forming adjectives and nouns) typical of or resembling; a person typical of

    Elizabethan

  3. (forming adjectives and nouns) adhering to or following; an adherent of

    Christian

  4. (forming nouns) a person who specializes or is expert in

    dietitian

    phonetician

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

An 2 British  
/ ɑːn /

noun

  1. Babylonian counterpart: Anu. myth the Sumerian sky god

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

An 3 British  

symbol

  1. actinon

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

AN 4 British  

abbreviation

  1. Anglo-Norman

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an 5 British  
/ æn, ən /

determiner

  1. a form of the indefinite article used before an initial vowel sound

    an old car

    an elf

    an honour

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an 6 British  
/ æn, ən /

conjunction

  1. (subordinating) an obsolete or dialect word for if See and

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an 7 British  

abbreviation

  1. Netherlands Antilles

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

an- 8 British  

prefix

  1. not; without

    anaphrodisiac

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Grammar

See a 1.

Usage

An was formerly often used before words that begin with h and are unstressed on the first syllable: an hotel ; an historic meeting . Sometimes the initial h was not pronounced. This usage is now becoming obsolete

Etymology

Origin of an1

before 950; Middle English; Old English ān one in a weakened sense

Origin of an2

First recorded in 1125–75; Middle English, unstressed phonetic variant of and

Origin of an-6

< Greek. See a- 6, in- 3, un- 1

Origin of -an9

Middle English < Latin -ānus, -āna, -ānum; in some words replacing -ain, -en < Old French < Latin

Origin of an.10

From the Latin word annō

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

Social isolation is an objective measure of the quantity of social connection in behavior, while loneliness is a subjective measure of a person’s emotional dissatisfaction with the quality of their relationships.

From MarketWatch ● Oct. 6, 2026

Last week, Amazon said it had signed a 20-year power-purchase deal with Constellation that included an upgrade of a nuclear plant on the western shore of Chesapeake Bay, adding 190 megawatts of power.

From The Wall Street Journal ● Oct. 6, 2026

That number grew to 18% in 1970 and increased further to an estimated 29% by 2022.

From MarketWatch ● Oct. 6, 2026

Nvidia has been on an investing tear recently, pumping billions into the neocloud space.

From The Wall Street Journal ● Oct. 6, 2026

According to the best medical theories of his day, Dr. Harlow diagnoses an imbalance of bodily "humors."

From "Phineas Gage" by John Fleischman

An inheritance is not an inheritance until it goes into your bank account after the death of the decedent in question.

From MarketWatch ● Oct. 6, 2026

An oral 15-PGDH inhibitor has already reached clinical testing for a different age related problem: muscle weakness.

From Science Daily ● Oct. 6, 2026

An emergency order could come soon, changing these prisoners’ lives before most people even learn the case exists.

From Slate ● Oct. 6, 2026

An hour and a half later, as passengers waited in the dark, a drone struck nearby.

From BBC ● Oct. 6, 2026

An ear-splitting crack -and they were overwhelmed by roaring whiteness.

From "Wolf Brother" by Michelle Paver

In her verdict, Judge AN Tse Ching relied in part on the messages exchanged after the encounter, according to the South China Morning Post, external.

From BBC ● Jul. 22, 2026

AutoNation AN -5.07%decrease; red down pointing triangle reported lower fourth-quarter revenue, weighed down by fewer comparable sales of both new and used vehicles.

From The Wall Street Journal ● Feb. 6, 2026

THE SDC IS AN international smorgasbord of ideas and inspiration, but it is not Ikea.

From Seattle Times ● May 5, 2023

I have no idea if the figures in SBF’s Substack post are accurate; SBF himself labels them as “JUST AN ESTIMATE.”

From Slate ● Jan. 13, 2023

They screamed up at the bleachers: “GIMME AN E!”

From "Stargirl" by Jerry Spinelli

I just - I do have to say it’s an- it’s an absolutely great novel, and he was a great writer.

From Scientific American ● Apr. 20, 2023

For too many parents and their children, getting into a highly selective school isn’t just another challenge, just an- other goal.

From MSNBC ● Mar. 21, 2015

Brooks arrived at the restaurant along with Valerie Jamieson, an- other physics editor from New Scientist, who introduced herself with a melodic Scottish brogue.

From Scientific American ● Jan. 31, 2014

From top, the band Yuck was among those that appeared on the tour; Stephen Pope of Wavves, appropriately named, an- other cruise group; Lou Barlow, leaning back, playing with Sebadoh.

From New York Times ● Mar. 30, 2012

No one makes the connection that the an- cient Incans we’re studying—a civilization respected through- out the world for its technology and art and architecture—are Rosita’s ancestors.

From "The Queen of Water" by Laura Resau

That was what they sang for the next few months as they wound through college campuses and through the bus route from Saket -an old protestor's chant about azaadi, freedom.

From BBC ● Dec. 14, 2013

Along with Senegal, Dahomey and the Voltaic Republic, the French Sudan completed the formation of the Mali Federation -an area of 680,000 square miles and 10 million people, with headquarters in Dakar.

From Time Magazine Archive

Dumas once summed up his own significance: "I carry with me wherever I go - I don't know how it is, but it is so -an atmosphere of life and stir which has become proverbial."

From Time Magazine Archive

They bemoaned "a blood bath with no military objective" -an accusation belied, not only by the British photographs of the industrial damage but also by Commandant Fontaine's eyewitness account of it.

From Time Magazine Archive

‘In the end,’ he whispered, ‘he summons -an elemental.’

From "Wolf Brother" by Michelle Paver

The result was published in an. edition of 300,000 copies in England last month.

From Time Magazine Archive

Balogh's ideas are an. odd mixture of common sense and doctrinaire Pestering.

From Time Magazine Archive

Browsing among the classics of 19th Century fiction has lately proved an. inexpensive and richly rewarded occupation for Hollywood story departments.

From Time Magazine Archive

With the Symphony for the last two springs "Doc" Davison's singers have given Bach's great B Minor Mass. With the Vassar Glee Club in Poughkeepsie this spring they made an. evening of Brahms's German Requiem.

From Time Magazine Archive

F, nearly ripe sporangium, × 50: i, from in front; ii, from the side. an. ring. st. point of opening.

From Elements of Structural and Systematic Botany For High Schools and Elementary College Courses by Douglas Houghton Campbell

I put the turning point in the spring of 2009, when A.N.

From The Wall Street Journal ● Oct. 17, 2025

A couple of decades later, Gottlob Frege with his "Begriffsshrift" and then Bertrand Russell and A.N.

From Salon ● Jul. 29, 2024

The Spring Valley-Wesley Heights Citizens Association’s website states that Wesley Heights, one of the country’s first planned communities, was developed in the 1920s by W.C. and A.N.

From Washington Post ● Feb. 1, 2022

In his decades since scouting, A.N. says he’s experienced severe emotional trauma, including “shame, humiliation and loss of enjoyment of life.”

From Seattle Times ● Feb. 18, 2020

“But that was A.N. And I never liked it half as much as I like it with you.”

From "Out of Darkness" by Ashley Hope Pérez

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